Figure 4
(a) Effective X-ray source profile at 50 keV for a mask aperture size of 1.1 mrad × 0.1 mrad. The X-ray source r.m.s. size is 650 µm × 54 µm. (b) Effective vertical source r.m.s. size as a function of vertical aperture at 30 keV (triangles), 50 keV (circles) and 70 keV (squares). |